Schedule BT pregnant. Basal temperature chart

Most women about this concept, like"Basal temperature," heard more than once, but few understand what this medical term means, why it is necessary to monitor this indicator and how to decipher the BT schedule of a pregnant and non-pregnant woman. We'll help you figure it out.

Basal temperature - what is it?

The basal body temperature is the minimuman indicator that is observed after prolonged sleep and rest. Different processes in the body of a woman increase the BT, it is thanks to this feature that you can determine the changes in the hormonal background during the menstrual cycle. Deviations in indicators are a signal about certain violations in the work of systems and organs. For example, pregnant women are often monitored. Graphs of low temperature BT in phase 2 may indicate a threat of miscarriage. And such indicators in a non-pregnant woman indicate infertility.

What is the basal temperature for?

Analyzing the changes in BT, determine the following pathologies:

1. The presence or absence of ovulation.
2. Fertile days. The information obtained can be used both for pregnancy planning and for the calendar method of contraception.
3. Violations of the cycle.In case of a deviation from the norm, the doctor may suspect some diseases of the reproductive system, for example, the presence of an inflammatory process or the lack of a luteinizing phase, as well as hormonal disorders.
4. Using the indicators of BT, you can learn about pregnancy in the early term. The BT schedule of the pregnant woman has its own peculiarities, which are described in more detail below.

How to measure BT?

How to measure the basal body temperature?For this it is necessary to stock up with a separate thermometer, preferably mercury. Measure BT in the mouth, vaginally and rectally. The latter method is considered the most preferable, since the results of such measurements are most reliable in connection with the minimal influence of external factors. In the axillary basin, BT is not measured. You only need to select a method, without changing it during the entire diagnostic period, which is at least 3 months. Measurements should be made in the morning, after at least a 6-hour sleep, without getting out of bed, preferably at the same time.

Observe changes in basal temperaturewomen with menstrual disorders, pregnant women. The graphs of BT for planning girls will become indispensable helpers in determining favorable days for conception of a child.

Приступить к фиксированию показателей БТ нужно в the first day of menstruation (the beginning of the cycle) in order to obtain complete information for a month period. Women pregnant BT schedules should be maintained regularly throughout the first trimester.

It is recommended to record the results immediately aftermeasurement, because the error can affect the diagnosis and interpretation of indicators. In addition to indicating the temperature itself, it is necessary to designate the day of the cycle, the number of menstruation days. It is extremely important to note additional factors that may affect the results of measurements: taking medications, lack of sleep, diseases, stress, physical activity, sexual intercourse on the eve of measurements, eating spicy foods and alcohol. Schedule BT pregnant, except for the above factors, should reflect the state of health and sensation of a woman.

Keeping records of BT

You can write data to a notebook, but it's more convenientUse online applications or computer programs to record and analyze basal body temperature measurements. Such a virtual assistant will decipher the BT schedule of a pregnant and nonpregnant woman: determine ovulation, calculate the average temperature of each phase of the cycle, allocate deviations from the norm, give recommendations. But do not forget that the obtained software decoding is only a preliminary generalized data, which can not be a diagnosis and a guide to self-treatment. Recorded results should be shown to the treating doctor-gynecologist. Particular attention should be paid to pregnant women. Graphs of low temperature BT should be shown to the treating doctor.

Change of BT during the menstrual cycle

In order to understand the principle on whichBased on the method of diagnosis with basal temperature, it is important to understand what processes in the body of a woman are associated with changes in temperature indicators.

The monthly menstrual cycle in medicine is divided into 4 phases:

1. Menstrual - begins with the first daymenstrual flow. This day is also considered the first day of the woman's monthly cycle. During this period, the body rejects the endometrium and is prepared at the hormonal level to develop a new egg. This phase lasts up to 7 days. BT in this period in the norm should correspond to 36.2-36.6 degrees.
2. Затем следует фолликулярная фаза.During this period, the body rapidly produces follicle-stimulating hormone, which promotes the development of follicles, and subsequently - the ovum. This period of the menstrual cycle lasts up to two weeks. Basal temperature in the follicular phase increases slightly and is normally 36.7-36.9 degrees. For a day or two, a pre-expected temperature drop occurs to 36.3 degrees.
3. Овуляторная фаза длится около 3 дней.This period is characterized by a decrease in the production of follicle-stimulating and an increase in the level of luteinizing hormone. Thanks to the latter, the release of the egg from the follicle occurs - this process is called ovulation. This is the most favorable time for the conception of the baby. Basal temperature during the period of ovulation rises and reaches values ​​up to 37.7-37.9 degrees.
4. The last phase, luteinizing, is characterized byintensive progesterone production to save pregnancy in case of its occurrence. The basal temperature in this phase remains above 37 degrees. In the absence of fertilization of the egg, the temperature indices decrease sharply 1–2 days before the expected menstruation and constitute 36.6–36.8 degrees. After this, a new cycle begins.

Schedule BT of a pregnant woman (after conception) in the norm should have the form of a monotonous straight line with indicators of BT above 37^about FROM.

Standards indicators BT

In terms of basal temperature, whichmeet the established standards, at the end of the monthly cycle, the curve of the resulting graph will have a clearly expressed two-phase separation. So, in the first half of the cycle the line will pass below the mark of 36.8. A few days before ovulation, the preovulatory decrease in temperature will be noted, after which a sharp increase in performance by at least 0.4 degrees. The jump is divided by a red line - this is marked the day of ovulation. After that, the elevated temperature lasts up to 14 days, then the premenstrual drop in the index is recorded.

BT during pregnancy: normal

If within 16 days after ovulation the thermometershows more than 37 degrees, this may indicate a pregnancy. In case of conception, the egg is attached to the wall of the uterus. Progesterone and the “pregnancy hormone”, hCG, are being produced. When women are pregnant, BT charts show a temperature of 37-37.6^about C. In 25% of cases in the early stages of development of the embryo, an increase of up to 38^about. In addition, with normal progesterone production, there will be no premenstrual decline in basal temperature.

When confirming conception, doctors recommendcontinue to maintain the schedule throughout the first trimester. It is especially important to keep a schedule of BT of a pregnant woman who had miscarriages or fetal fading in the early period in history. At later dates, this procedure is uninformative due to changes in hormonal levels.

On websites for expectant mothers, forums you canview the so-called "pregnant" graphics BT. A photo showing normal performance throughout the menstrual cycle, accompanied by conception, is presented below.

Implant recession - what is it?

Often there are "pregnant" graphics BT withImplant retraction - a sharp decrease in temperature approximately 5-7 days after ovulation. The next day, the figures return to a level above 37 degrees. This temperature change is observed during the period when the fertilized egg is attached to the wall of the uterus. The fixation of implant fall on the chart is considered a sign of pregnancy. In addition to a sharp jump in temperature, sometimes slight spotting from the genitals and pulling sensations in the lower abdomen can be observed. But if at the same time with such symptoms a woman observes "pregnant" graphics with low BT, this is a serious reason for an urgent appeal for medical help - the risk of miscarriage is possible.

BT during pregnancy: abnormalities

Deviations from the established standards of indicatorsbasal temperature often indicate a variety of violations, sometimes about the dangerous conditions of a pregnant woman and baby. If you complied with all the rules of measurement, and the thermometer records the figures below 37 or above 38 degrees, an urgent consultation with a specialist is necessary. It is necessary to pay attention to the state of health in the following situations:

1. In previous cycles, the basal temperature in the post-ovulatory period was 37–37.3.^about C, and during pregnancy jumped sharply to 38.Such a change in indicators may indicate the presence of various kinds of inflammatory processes in the body. It is required to undergo a series of tests and diagnostic procedures to make a correct diagnosis. But if, even before pregnancy, the temperature in the second half of the cycle was close to 38, there is no cause for concern, in this case, high rates of BT are the individual characteristics of the organism.
2. "Pregnant" graphs of low temperature BTPhase 2 requires urgent treatment to the doctor. Indicators below 37 degrees indicate a lack of progesterone - it is extremely dangerous during pregnancy. Reducing the level of the hormone can threaten with spontaneous abortion (miscarriage). With timely diagnosis of the pathological condition, it is possible to normalize the level of progesterone by taking synthetic drugs. In this case, the probability of preservation and further normal development of pregnancy is great. Another reason for the decrease in temperature may be missed abortion. Unfortunately, in this case, save the fruit is not possible. Such a diagnosis must be confirmed using ultrasound diagnostics. In the event of confirmation of a fading pregnancy, the doctor will prescribe curettage of the uterus for medical reasons.

The rate and deviation of the basal temperature curve

What should normally be indicators of BT ina certain period of the menstrual cycle, we discussed above. Now let's look at what are the types of graphs indicating deviations in health status:

1. If in the second half of the cycle basalthe temperature rises only slightly (up to 0.3 degrees) and such curves are fixed for several cycles in a row, the doctor may suspect a hormonal disturbance: there may be a lack of progesterone. Such deviations lead to a lack of ovulation, and therefore to infertility.
2. In most cases, face problems.when carrying a child, women whose basal temperature rises only a few days before menstruation, and the duration of the second half of the cycle is 10 days or less. In addition, there is no decrease in temperature before menstruation. In such a situation, doctors talk about the insufficiency of the second phase of the cycle, the threat of miscarriage. The timely detection of pathology is corrected by medical means.
3. Curve graphics that has no pronounceddecrease and increase in temperature, and according to the results of the indicators it is not possible to divide the cycle into separate phases, says the absence of ovulation. Call such a cycle "anovulatory". During the year, a woman can normally have 1 cycle without ovulation. But if such a schedule is fixed for three months or more, it is necessary to contact a gynecologist for examination. With such indicators of basal temperature, pregnancy is impossible. An example of such a graph is presented below.
4. Зигзагообразная, хаотичная кривая графика Basal temperature indicates a lack of estrogen in a woman’s body. This leads to a lack of development of the follicles, and subsequently the egg. And as a result - anovulation and infertility. Be sure to consult a specialist when fixing these types of charts for more than three cycles in a row.

Basal temperature measurement iseffective and affordable home method of diagnosing various pathologies in a woman’s body. The schedule of BT for pregnant women is extremely important - timely identification of the problem can save the life of the future baby and mother. But do not self-medicate - in case of abnormal temperature readings, consult a gynecologist for advice.